78440081 is an odd 8-digits composite number following 78440080
and preceding 78440082 . In scientific notation, it is written as 7.8440081 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 77778288 positive integers (up to 78440081) that are relatively prime to 78440081.
78440081 has 8 divisors, whose sum is 79104960
The reverse of 78440081 is 18004487
Previous prime number is 439
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
seventy-eight million four hundred forty thousand eighty-one
Scientific notation
7.8440081 × 10^7
Engineering notation
7.8440081 × 10^6
Prime Factorization
197 × 439 × 907
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78440081
Product of the distinct prime numbers
The prime factorization of 78440081 is 197 × 439 × 907.
Since it has a total of 3 prime factors.
8 , 2 , 61 , 87 , 175 , 171 , 3861 , 7245 , 89434 , 64235 , 540440 , 183915 , 8454126 , 1662801 , 41277510 , 32872129 , 49904782 , 112125947 , 8589916180 , 3326590691
n×2
156880162
n×3
235320243
n×4
313760324
n×5
392200405
n÷2
39220040.5
n÷3
26146693.666667
n÷3
19610020.25
n÷5
15688016.2
n2
6152846307286561
n3
4.8262976272411E+23
n4
3.785751768109E+31
n5
2.9695467533636E+39
2 √n
8856.640503035
3 √n
428.06791546064
4 √n
94.109725868451
5 √n
37.923429677765
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78440080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78440081 can be divided by 8 positive divisors.
The sum of these divisors (counting 78440081) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101011001110011010010001
3
Ternary
12110121011120012
4
Quaternary
10223032122101
5
Quinary
130040040311
6
Senary
11441124305
8
Octal
453163221
10
Decimal
78440081
12
Duodecimal
22329695
16
Hexadecimal
4ace691
20
Vigesimal
14a5041
36
Base36
1ap8r5
md5
0aad6d2cd1eb06e6246d3768a2440834
sha1
cb151e83c6f2656ece2e0f2b7fad46d17827beff
sha256
506c9a7eb636642277419b5001af06434eddfd0e906fc0bc437948bc5df6a93c
sha512
b2a7944d334423d35b5b40b183acc30d397951b4e2ade812be2467bbb078b444a4ed11fb3ca2e0da6e14a2259595cd7a2b12cc681ee00aaa39b77da0160c8891
ripemd-160
70bbfc425ca46688779772f5244576aad99c2bb9
Diameter
156880162
Circumference
492853564.43318
Area
1.9329736757639E+16
Volume
2.0216348226371E+24
Surface area
7.7318947030554E+16
Circumference
492853564.43318
Perimeter
313760324
Area
6152846307286561
Diagonal
110931026.38384
Surface area
36917077843719366
Volume
4.8262976272411E+23
Space diagonal
135862205.64182
Perimeter
235320243
Area
2.6642606038457E+15
Altitude
67931102.820909
Surface area
2.6642606038457E+15
Volume
5.6878463004112E+22
Height
36977008.794615